What is the CVSS score of CVE-2025-29520?

CVE-2025-29520 has a CVSS 3.1 base score of 5.3 (Medium). CVSS vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N. EPSS exploitation probability: 0.1%.

Which versions of Dsl 7740C Firmware are affected by CVE-2025-29520?

CVE-2025-29520 presents moderate security risk, a improper access control vulnerability rated CVSS 5.3. Exploitation could compromise the security of affected deployments.

Is there a public PoC exploit available for CVE-2025-29520?

Yes, a public proof-of-concept exploit is available for CVE-2025-29520. Prioritise patching immediately. EPSS: 0.1%.

How to fix or mitigate CVE-2025-29520?

Within 30 days: Identify affected systems and apply vendor patches as part of regular patch cycle. Monitor vendor channels for patch availability.

Dsl 7740C Firmware CVE-2025-29520

MEDIUM

Improper Access Control (CWE-284)

2025-08-25 cve@mitre.org

Authentication Bypass D-Link Dsl 7740C Firmware

5.3

CVSS 3.1 · NVD

Severity by source

NVD PRIMARY

5.3 MEDIUM

AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N

Primary rating from NVD · only source for this CVE.

CVSS VectorNVD

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

Low

Integrity

None

Availability

None

Lifecycle Timeline

Analysis Generated

Mar 28, 2026 - 19:08 vuln.today

PoC Detected

Sep 02, 2025 - 18:16 vuln.today

Public exploit code

CVE Published

Aug 25, 2025 - 15:15 nvd

MEDIUM 5.3

DescriptionCVE.org

AnalysisAI

Incorrect access control in the Maintenance module of D-Link DSL-7740C with firmware DSL7740C.V6.TR069.20211230 allows authenticated attackers with low-level privileges to arbitrarily change the. Rated medium severity (CVSS 5.3), this vulnerability is remotely exploitable, no authentication required, low attack complexity. Public exploit code available and no vendor patch available.

Technical ContextAI

This vulnerability is classified under CWE-284. Incorrect access control in the Maintenance module of D-Link DSL-7740C with firmware DSL7740C.V6.TR069.20211230 allows authenticated attackers with low-level privileges to arbitrarily change the high-privileged account passwords and escalate privileges. Affected products include: Dlink Dsl-7740C Firmware.

RemediationAI

No vendor patch is available at time of analysis. Monitor vendor advisories for updates. Apply vendor patches when available. Implement network segmentation and monitoring as interim mitigations.